Saw guard



April 13, 1948. L.. c. HALL SAW GUARD Filed April 24, 1944 FIGamat-sewn- I -INVNTQR L@ El .l1-H311' BYZvSz-Q 4,/

Patented Apr. 13, 1948 UNITED STATES PATENT OFFICE SAW GUARD Leyel Hall,Connell, Wash.A Application April 24, 1944, Serial No. 532,553

2 Claims. l

This invention relates to improvements in guard covers or casings forsaws.

The primary object of the present invention is the provision of arelatively cheap saw guard cover or casing which can be e'icientlyapplied upon a saw blade without the necessity of rendering the samebulky. I am aware that heretofore saw guard covers have been providedbut in the main they do not take into consideration the necessity foreconomical fabrication of the same I ner thatthe guard casingwill beefliciently renor the structural features of the saw blade and handle.In my saw guard cover the same is applied merely to the blade and is ofa nature to be distinctively retained thereon without unnecessary bulk.

Other objects and advantages of the invention will be apparent duringthe course of the following detailed description.

In the accompanying drawing, forming a part of this specication, andwherein similar reference characters designate corresponding partsthroughout the several views- Figure 1 is a side elevation of the coveras applied upon a conventional carpenters saw.

Figure 2 is an opposite side elevation of the saw and cover.

Figure 3 is a developed view showing the nat appearance of the saw coveras it appears for compact shipping.

Figure 4 is a cross sectional view taken substantially on the line 4--4of Figure 2.

Figure 5vis an edge view of a piece of felt or other soft material whichis used as an insert in the guard casing for the protection of the sawteeth.

In the accompanying drawing, forming a part of this specication, andwherein is shown merely a preferred embodiment of the invention, theletter A may generally designate the improved saw guard casing adaptedto receive a conventional carpenters saw B.

Referring to structural features of the conventional carpenters saw B,it, will be noted that the handle portion 6 is secured as by riveting,bolts o1' screws to a blade 1 in such manner that the side portions ofthe usual plastic or wooden handle project laterally from the sidesurfaces 0f the blade, and the marginal portion 8 of the saw along whichthe teeth are formed extends laterally of the blade attached portion ofthe handle. This structural feature has been taken advantage of toeffect the nat and compact assemblage o the guard casing upon the sawblade without the necessity of covering the handle and in Such. man.-

tained and cannot slip from the blade.

The cover A is fabricated of flexible heavy paper, plastic material orany approved material desired. It is structurally formed fiat and in onesheet, and comprises side walls I0 and Il connected upon a double foldline I2 (which may be indented or marked so as to permit the folding ofthe `side walls with facility.) A top cover flap I3 is provided, andforward end retaining flap Ill and handle and retaining flap I5 are alsoformed contiguous with the wall I il for purposes to` be subsequently`described. j

In general, carpenters sawsare manufactured of a tapering width from thehandle end where the blade is Widest. The walls I0 and II taper from apoint substantially midway of their ends along lines I6 and I1 towardsthe forward ends thereof and also taper more sharply from the midwaypoint towards the handle end of the casing, as designated by lines I8and I9. The decreasing taper of these side Walls at the handle end ofthe casing eliminates the necessity of providing coverage for the bulkyhandle of the conventional saw. In this way the cover may be compactlyassembled upon the blade and the retaining flap I5 may engage about thelaterally extending portion 8 of the blade, adjacent to the handle, forthe purpose of preventing slipping of the saw blade longitudinally outof the guard casing.

The top retaining iiap I3 of the casing is provided with buckling straps20 which are adapted to engage in a series of double slots 2| providedin the wall II. Likewise the retaining tabs I4 and I5 are provided withsimilar buckling straps adapted to engage in double slots 22 provided inthe Wall I I.

The mode of assemblage is clearly designated in Figures 2 and 4 of thedrawing where it is shown that the side walls lie iiat in abutment withthe sides of the blade of the saw; the top flap extending over the topedge of the saw blade and the straps 20 engaging in the slots 2|. Theforward end of the blade is guarded by the tab I4 whose strap engages inone of the slots 22. The retaining tab I5 at the handle end of the bladeengages around the edge of the laterally extending portion 8 of theblade and the strap thereof engages in the slots 22. The cover is thussecured rmly upon the saw blade against liability of accidentaldetachment.

In the casing at the fold line I2, a strip of felt or other fibrousmaterial C is placed. It may be secured therein in any approved manneras by stitching or by adhesive and it is preferably of a nature to beimpregnated with oil or some material which will prevent corrosion anddamage to the saw blade.

It is important that all parts of the cover be m'ade ofnon-metallicmaterial, although the fastening straps may be provided with suitablesnap fasteners or conventional buckles in lieu of the slottedarrangement designated.' irr thef drawing.

Due to the economical manner in which the cover or casing may befabricated as a stampiing of one piece, the same is adapted for freedistribution, since suitable advertisement delineations may be placedthereon, as designated-in Figure 2. The outer surface of the Wall Il)may be provided with suitable tables 5'@ such-as-are= used by carpentersto indicate rafter cutsginitrecuts, etc. Also the marginal edge of thewall l' may be providedwith suitable measuring delineations l of anyapproved'nature;

Various changes in the shape, size' andarrangement of parts may be madeto the form of' invention herein shownand described). withoutdepartingfrom the spirtof 'the invention or. the scope of the following. claims..

I claim:

1. As an articletofmanufacture'a saw guard casing comprisingspacediflexible side walls connected' along an integral'foldline,said.side-walls tapering in width from a pointiintermediate their endsforwardly, detachable retainngtab means for connecting said sidewall's"together'along' the 4 normal top of a saw, retaining tab meansconnecting said side walls at the normal forward end of the saw blade,said side walls including a rear reduced extension for folding about aportion of the rear end of the saw blade laterally of the handle.

2. As an article of manufacture a saw guard casing comprising side Wallsspaced to provide a pocketv foril receiving a sawblade; releasablefastening, means' detachablyrconnecting' said side walls together at thefront end thereof, and releasable fastening means detachably connectingsaid side walls together at the opposite end thereof where the handle ofthe saw is normally positioned,- the last mentioned fastening meansbeing disposed close to the lowermarginal portion of" said side Walls soas not to engage nor interfere with the handle of the saw. Y

LEYEL C. HALL.

REFERENCES CECEEE),

The followingy references arey of recordy inthe iile` of this patent:

UNITED STATES PATENTS* Arzet e1.al. .Mar. 11, 1941

